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- [24] BENEFICIATION OF LOW-GRADE TIN ORES BY FLOTATION CANADIAN MINING AND METALLURGICAL BULLETIN, 1966, 59 (647): : 276 - &
- [28] The magnetic concentration of low-grade iron ores TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1916, 56 : 892 - 912